In high-speed circuit design, the inductance and capacitance on the circuit board circuit make the wires equivalent to a transmission line. The incorrect layout of termination components or incorrect wiring of high-speed signals can cause transmission line effects, resulting in incorrect data output, abnormal circuit operation, or even complete failure of the system. Based on […]
LED, Light Emitting Diode, is a semiconductor component. Initially, it was commonly used as an indicator light, display LED board, etc. With the emergence of white LED, it is also used for lighting. LED, known as the fourth generation lighting source or green light source, has the characteristics of energy conservation, environmental protection, long lifespan, […]
The PCB assembly and welding process turns a circuit board into a functional prototype. The PCB assembly (PCBA) stage includes device placement, welding, inspection, and finally testing. The PCBA process can be manual or automatic, as determined by the manufacturer at each stage. PCB design starts from the schematic diagram. Design a PCB layout based […]
There are two main categories of PCB material: organic substrate materials and inorganic substrate materials, and the most used is organic substrate materials. The PCB material used for different layers is also different, for example, 3-4 layers are prefabricated composites, and double panels are mostly glass-epoxy materials. Materials used to make printed circuit boards (PCBs) […]
In any switching power supply design, the physical design of the PCB board is the last step. If the design method is improper, the PCB Design may radiate too much electromagnetic interference, causing the power supply to work unstably. The following is the analysis of the matters needing attention in each step. pcba 1. PCB […]
PCBA chip processing factory improves PCBA welding method 1、 Improve welding temperature and time The intermetallic bond between copper and tin forms grains, and the shape and size of the grains depend on the duration and strength of the temperature during welding. Less heat during welding can form fine crystalline structure and form excellent welding […]
In SMT chip processing and production, it is often necessary to take electrostatic protection measures for the assembly of electronic products to reduce the damage to electronic products. The specific methods of electrostatic protection are: (1) Reduce product friction In the rotating device of the production line, it is necessary to reduce the slipping of […]
The proliferation of increasingly stringent requirements for micropore density and signal integrity in printed circuit boards in the electronics industry reveals the reliability of micropore structures in high-performance products. Many IPC OEM member companies have provided IPC with examples of microporous failures in high-end hardware. These examples were not observed until the bare PCBA was […]
As electronic devices become smaller and lighter, the demand for high-performance PCBs continues to grow. However, application electronic equipment will generate huge heat due to the high-frequency IC components (such as A/D or D/A type) used therein. This heat will affect the thermal density and performance of PCB. Highlights of processing service for high-temperature […]
The border (clamping edge) of the PCB board assembly method should be selected with a closed-loop control design scheme to ensure that the PCB board assembly method is not easy to deform after being fixed immobile in the fixture. The border (clamping edge) of the PCB board assembly method should be selected with a closed-loop […]
Chip soldered to PCB, which is the carrier of integrated circuits. Chip refers to IC, is composed of the crystal original and outside the package, as small as a transistor, as large as the computer's CPU, are IC, in general, are installed through the pins on the PCB, chip, and PCB connection has a volume […]